Ratchet-drill



. when (No Model.)

' A. M. WHITE.

RATGHET DRILL.

No. 306,886. Patented Oct. 21,1884.

Uwiran STATES Parent Critics.

ALBERT M. \VHlTE, OF \VATERBURY, CONNECTICUT.

RATCHET-DRILL.

JPECZEICATION forming part of Letters Patent No. 306,886, dated October21, 1884.

Application tiled February 1!, IFS-1.

To all wit/111?, it may 0071/0617 Be it known that. I ALBERT M. Wnrrn.of Utter-bur in the county of New Haven and State of Connecticut, haveinvented a new and useful Improvement in Ratchet Drills and \Vrenehes,of which the following is a specili cation.

My invention relates to ratchet-drills and ratchet-wrenches in which thesocket receiving the drill, nut. or bolt. and provided with the ratchetwheel or hub, may he turned in one or the other direction by theengagement of one or other of two pawls. which are operated by thehandle or lever; and an important object of my invention is to dispensewith all springs in a ratchet drill or wrench of that class.

To this end the invention consists in novel combinations of parts, whichare hereinafter described, and setforth in the claims.

In the accompanying drawings. Figure l is a side view of a ratchet-drillembodying my invention. Fig. 2 is a horizontal section on the plane ofthe dotted line x m, Fig. 1. showing the parts adjusted for turning thedrill-socket in one direction; and Fig. 3 is a similar view, showing theparts adjusted for turning the drill-socket in the reverse direction.

Similar letters of reference designate corrcsponding parts in all thefigures.

A designates the drill-sockets wherein is fitted the drill a, and whichis provided with a ratchet huh or wheel, A, the teeth of which arepreferably V-shaped, as shown in Figs. 2 and In the upper end of thesocket A is the usual feed-screw, b.

The head or stock of the tcol consists of two plates, B B, respectivelyprovided with cylindric hearings c c, which receive the drillsocket A,and are capable of turning thereon. The plate B is likewise providedwith a flange or nearly circular shell, 0", which is of a depth 1 equalto the depth of the ratchet-hub A, and

which forms a box for the reception and pro tection of said hub. The twoplates B B are rigidly secured together by a bolt, d. and this boltforms the fulcrum on which the handle C may turn, the thickness of theinner portion of said handle being sufficient to till the space betweenthe said plates B B, as shown in Fig. 1.

(No model.)

The portion of the hoEt d on which the handle C works is slightly largerin diameter than those portions of the bolt which pass through thetwoplat-es BB, as is shown in dotted lines in Fig. l. and consequently thebo t has shoulders against which the plates B B are held by the nuts 60.and which hold the said plates at such a distance apart as will permit afree movement of the, lever or hande C.

The portion of the lever or handle C inward of the fulrrum (7 thereof isforked, so as to form two pawls,ff, one orothcrof which will engage withthe ratchet-huh A, according to the direction in which said hub and thedrillsocket are to be turned. Bet Wt on the two pawls ff, or, in otherwords. in the fork of the lover or handle, is a stop. D, (here shown asof sectorshape.) and which has pivots g fitting in holes or hearings inthe plates B B. The shoulders formed on the bolt d. as, above described.also serve to hold the plates B B at such a distance apart that the stopD may be turned somewhat on its pivot g.

In the stop D is fixed a pin, h, which projects upward through a slot inthe plate B, and by means of which the stop D may be turned from theposition shown in Fig. 2 to that shown in Fig. 3, or vice versa.

As shown in Fig. 2,the stop D is adjusted to the position necessary topermit the turning of the ratchet-hub A and drill-socket A in thedirection of the arrow, and when .thelever or handle C is moved in thedirection of the arrow thereon the pawl f. is engaged with the hub A,and said hub and the socket A are turned in the direction of the arrowthereon.. To provide for this the stop D is turned so as to bring a faceor portion of least projection from the pivoty opposite the pawlf, and aportion of greatest projection opposite the pawl \Vhen the lever orhandle C is moved in the reverse direction, it and its pawls ff assumethe position shown by dotted lines in Fig. 2, and by reason of that armof the fork on which is the pawl f striking against the stop D said pawlf is prevented from engaging with the ratchet-hub A, and the returnmovement of the lever or handle and plates B B, constituting the head orstock, is made 100 independent of the ratchet-hub A and drillsocket A.

- In Fig. 3 I have shown the stop D z'n'li net i to permit the operationot' the pawl f. :nnl prevent the operation ot the pawl ttllti Irv theaction of the lever or hznnlle the rutehet' hub A and drill-socket Ainuv he turnetl in the direction of the arrow, F1 53.

In the position shown in Fig. 3; the atop ii is so tnljustetl that itsportion of grout int pro jeetion is opposite the pawl f. tltlti preventsthe Said pu-wl from engaging the rntehetx-lmh. The poition 0tlenst'projeetion is op'positethe pawl/"mud allows the hitter to net onthe ratchet-hub.

\Vhztt i (Jitlllli as my 'il'lYLlliiUll, uutl desire to Secure byLetters Patent. i..

1. The Combination,with :1 (trill or nut noel;- eta provitletl with ;trutehet-huln ot' (L tetoel-z provided with hearings for :mitl soelcet nhuntlle t'ulerunietl in tl :snid lmncllo. pivoted in the :st'oek and(capable; of heing turuetl to bring port'iot'n-s ot' the stop ham-int:tlitterentl degrees of projection from its renter opporite Stlitl pnwln,whereby either '])tl\\l may he allowed to opornte on said ratchetihuhtlllti the other pnwl prevented from operating. tillilSittlliittih' 21Sheroin tittt'jl'ihtti.

ti. iheeonthiinttiotnwit-h at (trill or nut socket provitlotl with :1mtehetv-lluh ot' the sleek continuing oi the pinto; it '3. TH'UVitittiwith heurine'n tor the r-ttlitt soehet, aunt one provided with u tlungeor shell iuelostiugtiles-mitt ratchet;-

huh. the handle or lever (I, t'uleruntotl at; (l, i ztntt(titltiit'lltfieti with puwls ff. and it stop zll'lttllg'tti in thet'ork ot' the hznnlle between stool; utni torketl to constitutetwopnrw'lmtntl ust op l'or controlling the operation otmo pnwln, arrangedin the i fork of the hnutlle ltetween the pttwls, tttlti (:npnhle ot'znljust'tnent to prevent the eing'ztg-elnent of either one ol sand pnwlnwith nuitl I ntehetlimh, and to permit the engagement ol' l l l l l lonitl pttwls. and eztpzthle ot' mljuntxtnentx to pro \ettti theetnrugententv ol" either one of said pstwln with Httitilttttiltil-itllt'), and to permit tilttil]1{;l; t\liltllt (ti the otherpawl with said huh, uuhstnntiutltr ztS herein tlenerihetl.

-l-. The ooinhiinttion,with at (trill or nut Souket'. provitletl with itrttteltetvhuh. 01' u stool;

wherein sztitl socket in tittetl, thehznnlle (J, t'ulerninetl in willntoeh. untl provided with pawl; anti the znljt'tutnhle seetor-shupetlatop i). pit'otetl in the ntoelc between SiLlti t pztwh wt 'istuntiztllyno herein tltneribetl.

.A. t nunon.

